CN1258347C - Computerised tomography - Google Patents
Computerised tomography Download PDFInfo
- Publication number
- CN1258347C CN1258347C CN02104690.5A CN02104690A CN1258347C CN 1258347 C CN1258347 C CN 1258347C CN 02104690 A CN02104690 A CN 02104690A CN 1258347 C CN1258347 C CN 1258347C
- Authority
- CN
- China
- Prior art keywords
- stand
- measure
- computerised tomograph
- computerised
- tomograph
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000003325 tomography Methods 0.000 title 1
- 230000005855 radiation Effects 0.000 claims description 29
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000002591 computed tomography Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 238000004364 calculation method Methods 0.000 description 8
- 238000004590 computer program Methods 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
- A61B6/035—Mechanical aspects of CT
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4488—Means for cooling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/14—Determining imbalance
- G01M1/16—Determining imbalance by oscillating or rotating the body to be tested
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/30—Compensating imbalance
- G01M1/32—Compensating imbalance by adding material to the body to be tested, e.g. by correcting-weights
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- High Energy & Nuclear Physics (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Public Health (AREA)
- Radiology & Medical Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Pulmonology (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
A computed tomography apparatus has a gantry that is rotatable around a rotational axis and a detector for determining an unbalanced mass of the gantry and a calculating unit for calculating the location or locations at the gantry at which a weight or at which weights should be arranged for compensating the unbalanced mass.
Description
Technical field
The present invention relates to a kind of computerised tomograph with the stand that can rotate around rotating shaft, it has and is used to measure the unbalanced device of described stand.
Background technology
For example at US 5,610, once told about the computerised tomograph of the above-mentioned type in 968.This computerised tomograph comprises that can center on the stand that rotating shaft rotates, arranged such as parts such as x-ray radiation source or radiation detectors that on this stand these parts can rotate along with the patient of this stand around examine when stand is worked.The imbalance that stand may occur, also be described stand with respect to its rotating shaft radially and/or axial wobble may cause the not fogging Chu that utilizes computerised tomograph to produce.Therefore, when making computerised tomograph, utilize a kind of special balancing equipment to measure the disequilibrium of stand, install one or more weights for then this stand, so that compensate described imbalance or reduce at least within the suitable margin of tolerance.Therefore, described stand is to be undertaken equilibrated by balancing equipment and weight.Such as Br ü el ﹠amp; Kj r Vibro company once provided suitable balancing equipment (Br ü el ﹠amp; Kj r Vibro limited company, Landwehr street 55,64293 reaches the nurse Stuart).
After replacing is arranged in parts on the described stand, need the described stand of balance again usually.Described balancing equipment must be put the position at computerised tomograph place for this reason.
Yet this balancing equipment is very expensive, and its operation is also very complicated, and it is very hard therefore carrying out balance again after having changed the parts that are arranged on the stand.
Summary of the invention
Therefore task of the present invention is so to implement a kind of computerised tomograph, makes to satisfy this precondition of stand of the described computerised tomograph of balance simply.
According to the present invention, this task is solved by a kind of computerised tomograph with the stand that can rotate around rotating shaft, and it has and is integrated in being used in this computerised tomograph and measures the unbalanced device of described stand and be used to calculate one or more putting positions that one or more weights should be on described stand to compensate unbalanced device.That is to say that described computerised tomograph has to be integrated in and is used to measure the unbalanced device of stand in this computerised tomograph.Therefore, when replacing is arranged in parts on the stand, need not put outside balancing equipment to the position of this computerised tomograph.Having cancelled thus may calibration complicated, external balance equipment, thus the error can reduce balance the time, and the less technical staff of experience balance this stand reliably just.In addition, be integrated in being used in this computerised tomograph to measure unbalanced device and can also mate with this computerised tomograph especially, so that realize balance more accurately.For the reason of cost, the technical staff does not have external balance equipment usually at one's fingertips during safeguarding.A major advantage of computerised tomograph of the present invention is that the technical staff also can cheaply and reliably control the imbalance of described stand in the maintenance process of computerised tomograph.
Describedly be used to measure after unbalanced device measures the imbalance of stand when utilizing, by the described device that is used for calculating location calculate on stand, put one or more weights the position to compensate imbalance.These positions for example can utilize the monitor of the Control Computer of described computerised tomograph to show.Thus than the putting position that is easier to find weight.
According to a kind of flexible program of the present invention, describedly be used to measure unbalanced device and comprise a test receptor, by this test receptor measure with respect to the rotating shaft of described stand radially or axial wobble.This test receptor is used to measure stand and works with respect to the device of the position of the standing part of described computerised tomograph with described, and the latter is a still described part that is used to measure unbalanced device simultaneously.When this test receptor is measured with respect to the radially wobbling of rotating shaft, can be in accordance with known methods by carrying out logic with described stand with respect to the position of computerised tomograph shell with respect to radially wobbling of rotating shaft and be connected and infer the radially imbalance of stand with respect to rotating shaft described.On the contrary, by the axial wobble of measuring with respect to rotating shaft is combined with the position of mensuration stand with respect to the computerised tomograph shell, can infer the axial imbalance of stand with respect to rotating shaft.
Describedly be used to measure unbalanced device and comprise at least two test receptors if make according to a kind of very favorable scheme of the present invention, and by this test receptor measure with respect to the rotating shaft of described stand radially or axial wobble, so both can measure the radially imbalance of described stand, also can measure the axial imbalance of this stand with respect to its rotating shaft with respect to rotating shaft.At this, described test receptor so is installed on the described computerised tomograph, make for example a test receptor only measure with respect to the radially wobbling of rotating shaft, another test receptor is then only measured the axial wobble with respect to rotating shaft.
For reconstruct with the image that described computerised tomograph produced, must during stand rotates, know the position of described stand with respect to the fixed housing of described computerised tomograph.Therefore, in a kind of especially advantageous embodiment of the present invention, stipulate, be used to measure described stand and must be used to reconstruct with the image that described computerised tomograph produced, and be a described part that is used to measure unbalanced device with respect to the device of the position of the standing part of described computerised tomograph.Therefore, describedly be used to measure stand and need only be implemented once, when making computerised tomograph, provide cost savings widely thus with respect to the device of the position of the standing part of described computerised tomograph.
According to another expansion scheme of the present invention, describedly be used to measure the unbalanced device of stand and comprise a computer, it is online that this computer can be connected to a kind of information transmission, so that the unbalanced relevant data of the stand of being measured is transferred to a central database.Described central database for example can be equipped with by manufacturer, marketing team or the business tissue of described computerised tomograph.But they also can be safeguarded the service supplier operation of described computerised tomograph by those.When described computerised tomograph is worked, also can measure the imbalance that the unbalanced device of stand is automatically checked described stand, so that especially identify the unbalanced change of described stand by described being used at every turn.If for example the imbalance of described stand exceeds a predetermined margin of tolerance, then can for example automatically get in touch described central database by information transmission net by computer.But also can be retained in the relevant data of the uneven out-of-size scope of stand in the memorizer of computer, so that by manufacturer, business tissue, marketing team or safeguard that the service supplier of this computerised tomograph for example gets in touch described computer regularly by information transmission net, and utilize the data base to read the memorizer of described computer.Therefore, in the above two kinds of cases, manufacturer, business tissue, marketing team or the service supplier of safeguarding this computerised tomograph can obtain the uneven reformed information about described stand apace, can send the technical staff with charge free to this computerised tomograph apace thus, so that the described stand of balance again.So can monitor the stand imbalance of described computerised tomograph when work substantially continuously.
According to another kind of flexible program of the present invention, the described device that is used to calculate one or more positions of stand comprises a Control Computer of described computerised tomograph.Except calculate weight at the putting position on the stand carrying out the balance, described Control Computer is also being controlled the rotation of stand, described x-ray radiation source and radiation detector during making with the patient image that computerised tomograph produced.
According to especially preferred embodiment of the present invention, consider to have put position component on the described stand by the described device that is used to calculate one or more positions of stand.According to a kind of scheme of the present invention, described parts comprise x-ray radiation source, radiation detector and/or are used for the X-ray tube of described x-ray radiation source is carried out refrigerative chiller.As everyone knows, can not arrange the weight that is used for the balance stand in those positions of putting parts.In known balancing equipment, ignored this fact, and also measured these and place described weight in position of placing component.However, for the described stand of balance, experienced technical staff must find out those positions that still have the place to can be used for weight according to the measured position of balancing equipment.So equilibrated precision depends on the experience of carrying out this equilibrated technical staff, this technical staff for example also must carry out repeatedly balance and attempt, and is balanced within the predetermined margin of tolerance up to described stand.
Because being used to calculate the device of one or more positions of stand, the present invention considered on stand, to have laid position component, that is to say and only measure those positions that still have the place to can be used for putting weight on the stand, so the less technical staff of experience also can be fast and accurately realized described balance.This has also cancelled repeatedly the balance trial, has saved valuable time thus, also provides cost savings thus.
Description of drawings
Example and show embodiments of the invention briefly in the accompanying drawings.Wherein:
Fig. 1 and 2 shows the side view of computerised tomograph.
The specific embodiment
Example and show the side view of a computerised tomograph briefly in Fig. 1, it has the stand 2 of circular structure, this stand 2 is placed on the fixed shell 3 of computerised tomograph 1, and can rotate on the direction shown in the arrow a around the rotating shaft 4 perpendicular to the reel of Fig. 1.Fig. 2 shows the opposite side view of computerised tomograph shown in Figure 11 on the direction of the arrow B indication of Fig. 1 briefly.Be not shown specifically the shell 3 of described computerised tomograph 1 in this embodiment.
A plurality of parts on stand 2, have been arranged, in this embodiment, described parts comprise x-ray radiation source 5, are positioned at the radiation detector 6 on these x-ray radiation source 5 opposites and the chiller 7 that is not shown specifically, and this chiller 7 is used to discharge the heat that duration of work produced of the X-ray tube of described x-ray radiation source 5 at computerised tomograph 1.When computerised tomograph was worked, described stand 2 rotated around rotating shaft 4, and wherein, the fan-shaped X-radiation bundle 8 that sends from x-ray radiation source 5 passes test section 9 with different projectional angles, and enters radiation detector 6.Data determination equipment 10 is obtained some test values from the output signal that described radiation detector 6 produces, and is entered in the Control Computer 11 of computerised tomograph 1.Control Computer 11 calculates one thus and is arranged in test section 9 and at the unshowned patient's of Fig. 1 and 2 image.Under the situation of this embodiment, data determination system 10 utilizes electric wire 12 to link to each other with Control Computer 11, and described electric wire for example includes a contact ring system or wireless transmission link in a not shown manner.Described x-ray radiation source 5 is realized by contact ring with being electrically connected in known, unshowned mode of radiation detector 6.
For according to described test value reconstructed image, on the shell 3 of described computerised tomograph 1, installed a kind of known position receptor 13, when stand 2 work, measure the position of described stand 2 by this position receptor, and this information is sent to Control Computer 11 by electric wire 14 with respect to shell 3.
When making computerised tomograph 1, described stand 2 usually can be uneven in the radial and axial generation of rotating shaft 4, makes this stand 2 not rotate with respect to its rotating shaft 4 exactly.Yet the image that bigger imbalance can cause utilizing computerised tomograph 1 to draw produces unintelligible, or causes damaging this computerised tomograph.Therefore on stand 2, arranged weight 15 usually, compensated the imbalance of described stand 2, or it has been reduced within the suitable margin of tolerance at least by this weight.
In order when not arranging weight 15, to determine the imbalance of described stand 2, and find the position of weight 15 thus accurately, in shell 3 integrated a kind of as shown in Figure 1 test receptor 16a and test receptor 16b as shown in Figure 2.When stand 2 rotates around rotating shaft 4, measure imbalance because of stand 2 along radially wobbling that rotating shaft 4 produces by test receptor 16a shown in Figure 1, and this information is transferred to Control Computer 11 through electric wire 17.On the contrary, during stand 2 rotates around rotating shaft 4, measure the axial wobble that the imbalance because of stand 2 produces along rotating shaft 4, and this information is transferred to Control Computer 11 equally by unshowned electric wire among Fig. 1 and 2 by test receptor 16b shown in Figure 2.During stand 2 rotations, shown position receptor 13 is also measured the position of described stand 2 with respect to shell 3 simultaneously, like this, Control Computer 11 can utilize the computer program that is called when measuring with respect to rotating shaft 4 radial and axial uneven to measure the imbalance of described stand 2, and this is similar to the unshowned external balance equipment of Fig. 1 and 2.
According to the imbalance of being measured, Control Computer 11 utilizes another computer program to calculate that must arrange the weight 15 of appropriate mass on stand 2 position in first calculation procedure, so that the imbalance of compensation stand 2, wherein said calculation procedure is similar to the calculating of external balance equipment.In this first calculation procedure, whole stand 2 is to arrange weight 15, that is to say, according to this first calculation procedure also may measure stand 2 as upper/lower positions, promptly this position is taken by parts such as x-ray radiation source 5, radiation detector 6 and chillers 7, thereby does not have the position to can be used for installing weight 15.
In second calculation procedure based on first calculation procedure, by Control Computer 11 utilize computer program and by suitable interpolating method calculate on the stand 2 as upper/lower positions, promptly on these positions, also have the local described weight 15 of placing.That is to say, be to consider promptly to have arranged such as parts such as x-ray radiation source 5, radiation detector 6 and chillers 7 on these positions of described stand 2 as upper/lower positions in this second calculation procedure.
In order to make the technical staff who in Fig. 1 and 2, does not illustrate also can discern those positions that need to place weight 15 on the described stand 2, show these positions by on electric wire 19 and the monitor 18 that Control Computer 11 links to each other a kind of.
When changing such as parts such as x-ray radiation source 5, radiation detector 6 and chillers 7; described stand 2 can produce new imbalance usually; make and to be put into described weight 15 on the another location of stand 2; or use some unshowned other weights in Fig. 1 and 2, or take away a part of weight 15.For this reason, the technical staff can call the aforementioned calculation machine program of Control Computer 11, so that find on stand 2 and must place the position of weight 15, thereby the imbalance that can compensate the stand 2 that produces because of the replacing parts changes, or it is reduced within the predetermined margin of tolerance.
Regulation also in addition under the situation of this embodiment, when computerised tomograph 1 work, is just measured the imbalance of described stand 2 by the unbalanced computer program that is used to measure stand 2.If the imbalance of stand 2 changes in time or exceeds the described margin of tolerance, then automatically get in touch central database 20 by Control Computer 11, under the situation of this embodiment, described data base is by manufacturer's 21 operations of computerised tomograph 1.
Control Computer 11 is got in touch described data base 20 in the following way, is promptly dialled in known manner in the unshowned telephone network of Fig. 1 by this Control Computer, and gets in touch the data base 20 who links to each other with this telephone network equally thus.
After the described data base 20 of Control Computer 11 contacts, this Control Computer 11 sends the relevant data of the uneven out-of-size scope of described stand 2 to data base 20.The unbalanced information about stand 2 can be learnt by manufacturer 21 thus, and sends the technical staff with charge free to this computerised tomograph 1, allows this technical staff described stand 2 of balance again thus.
But, under the situation of the uneven out-of-size scope of measuring stand 2, also can store this information in the memorizer 22 of Control Computer 11 into.For example utilize data base 20 to get in touch described Control Computer 11 regularly by manufacturer 21 then, identify the imbalance when described stand 2 has the out-of-size scope thus by information transmission net.
Manufacturer 21 needn't get in touch described Control Computer 11 regularly.Data base 20 also can be runed by other administration section or individual.Described information transmission net also needn't be a telephone network.It especially also can be the Internet.20 couples of the present invention of central database are also not necessarily necessary.Also needn't when computerised tomograph 1 work, all automatically measure the imbalance of described stand 2 by measuring unbalanced device at every turn.
In addition, according to the present invention, the Control Computer 11 that is used to calculate the putting position of weight 15 also needn't be considered the putting position of each parts on stand 2.
For the reason of cost, although can adopt the described position receptor 13 that is used for the image that reconstruct produced with computerised tomograph 1 to measure 2 imbalances of described stand, this is not necessary to the present invention yet.Also can use second independent position receptor.
But, describedly be used to measure two test receptor 16a of stand 2 unbalanced devices and the shell 3 that 16b also can so be arranged in computerised tomograph 1, make them two can measure radially wobbling with respect to rotating shaft 4.In order to make them also can measure the axial wobble of stand 2 with respect to rotating shaft 4, they must with respect to rotating shaft 4 axialy offsets be installed on the shell 3 of stand 2.
The described unbalanced device that is used to measure stand 2 also can have only a test receptor.This test receptor so is installed on the shell 3 of computerised tomograph 1, makes it can measure radially wobbling and axial wobble with respect to rotating shaft 4.But the described unbalanced device that is used to measure stand 2 also can comprise plural test receptor.
Describedly be used to measure computer program uneven and that be used to calculate the putting position of weight 15 and also needn't leave Control Computer 11 in.They especially can also be stored on the separate modular that is integrated within the computerised tomograph 1, or be stored in independent computer that this computerised tomograph 1 links to each other on.
In addition, can also on stand 2, arrange other parts, for example employed high tension generator of X-ray tube of described x-ray radiation source 5 or the like.
The patient who is told about can be the people in this embodiment, also can be animal.The present invention also can be the computerised tomograph of industrial use.
The reference symbol table
1 computerised tomograph
2 stands
3 shells
4 rotating shafts
The 5X ray radiation source
6 radiation detectors
7 chillers
8X x radiation x bundle
9 test sections
10 data determination equipment
11 Control Computer
12 electric wires
13 position receptors
14 electric wires
15 weights
16a, 16b tests receptor
17 electric wires
18 monitors
19 electric wires
20 data bases
21 manufacturers
22 memorizeies
A, the B arrow
Claims (8)
1. the computerised tomograph that has the stand (2) that can center on rotating shaft (4) rotation, it has to be integrated in and is used to measure the unbalanced device (11 of described stand (2) in this computerised tomograph, 13,16a, 16b) and be used to calculate one or more weights (15) should be at the one or more putting positions on the described stand (2) to compensate unbalanced device (11).
2. computerised tomograph as claimed in claim 1, wherein,
Described be used to measure unbalanced device (11,13,16a, 16b) comprise a test receptor (16a, 16b), by this test receptor measure with respect to the rotating shaft (4) of described stand (2) radially or axial wobble.
3. computerised tomograph as claimed in claim 1, wherein,
Described be used to measure unbalanced device (11,13,16a, 16b) comprise at least two test receptors (16a, 16b), by these test receptors measure with respect to the rotating shaft (4) of described stand (2) radially or axial wobble.
4. as the described computerised tomograph of one of claim 1～3, wherein,
Install some and be used to measure the device (13) of described stand (2) with respect to the position of the standing part (3) of described computerised tomograph (1), this device is necessary to reconstruct with the image that described computerised tomograph (1) is produced, and be the described unbalanced device (11 that is used to measure, 13,16a, part 16b).
5. as the described computerised tomograph of one of claim 1～3, wherein,
Describedly be used to measure the unbalanced device (11 of stand (2), 13,16a 16b) comprises computer (1), it is online that this computer can be connected to a kind of information transmission, so that the unbalanced relevant data of the stand of being measured (2) is transferred to a central database (20).
6. as the described computerised tomograph of one of claim 1～3, wherein,
Describedly be used to measure unbalanced device (11,13,16a 16b) comprises the Control Computer (11) of described computerised tomograph (1).
7. as the described computerised tomograph of one of claim 1～3, wherein,
Be used to calculate one or more weights (15) and should consider to have put on the described stand (2) position of parts (5,6,7) to compensate unbalanced device (11) by described at the one or more putting positions on the described stand (2).
8. computerised tomograph as claimed in claim 7, wherein,
Described parts comprise x-ray radiation source (5), radiation detector (6) and/or are used for the X-ray tube of described x-ray radiation source (5) is carried out refrigerative chiller (7).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10108065A DE10108065B4 (en) | 2001-02-20 | 2001-02-20 | CT Scanner |
| DE10108065.4 | 2001-02-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1371662A CN1371662A (en) | 2002-10-02 |
| CN1258347C true CN1258347C (en) | 2006-06-07 |
Family
ID=7674809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02104690.5A Expired - Lifetime CN1258347C (en) | 2001-02-20 | 2002-02-20 | Computerised tomography |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6590960B2 (en) |
| JP (1) | JP2002315745A (en) |
| CN (1) | CN1258347C (en) |
| DE (1) | DE10108065B4 (en) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10320973B4 (en) * | 2003-05-09 | 2006-04-27 | Siemens Ag | Imaging tomography apparatus and method for reducing an imbalance on a tomography device |
| DE10320974B4 (en) * | 2003-05-09 | 2005-12-01 | Siemens Ag | Method for reducing an imbalance and use of an electro-rheological fluid for reducing an imbalance |
| US6890100B2 (en) | 2003-07-18 | 2005-05-10 | Ge Medical Systems Global Technology, Inc. | CT gantry balance system |
| DE102004004301B4 (en) * | 2004-01-28 | 2013-01-31 | Siemens Aktiengesellschaft | Imaging tomography device with compensating rings to compensate for an imbalance |
| DE102004004298B4 (en) | 2004-01-28 | 2013-01-31 | Siemens Aktiengesellschaft | Method for compensating an imbalance in a tomographic imaging device |
| DE102004004297B4 (en) * | 2004-01-28 | 2013-06-27 | Siemens Aktiengesellschaft | Imaging Tomography Device |
| DE102004004299B4 (en) * | 2004-01-28 | 2012-04-05 | Siemens Ag | Imaging tomography device with balancing device |
| DE102004004300B4 (en) * | 2004-01-28 | 2012-04-19 | Siemens Ag | Imaging tomography device with balancing device |
| DE102005009557A1 (en) * | 2005-03-02 | 2006-09-07 | Siemens Ag | Imbalance detection method for use in detecting the steady mounting of a rotary system, e.g. a CT system, in which sets of measurements of the rotation of the system are taken, and their scatter compared with a threshold value |
| US7463168B2 (en) * | 2006-07-21 | 2008-12-09 | Hewlett-Packard Development Company, L.P. | Encoder |
| JP5117151B2 (en) * | 2007-09-26 | 2013-01-09 | 株式会社東芝 | X-ray computed tomography system |
| JP5433151B2 (en) | 2008-01-08 | 2014-03-05 | 株式会社東芝 | Rotating machine adjusting device, rotating machine adjusting method, and X-ray CT apparatus manufacturing method |
| US8526571B2 (en) | 2008-06-03 | 2013-09-03 | Koninklijke Philips N.V. | Air bearing dynamic Z-axis balancing |
| US8051715B2 (en) * | 2009-02-25 | 2011-11-08 | The Boeing Company | Resonant inspection using reconfigurable nest |
| CN102809464B (en) * | 2011-05-31 | 2015-02-18 | 上海西门子医疗器械有限公司 | Dynamic balance measurement method and device and CT (computed tomography) apparatus with dynamic balance measurement device |
| JP5800578B2 (en) * | 2011-05-31 | 2015-10-28 | キヤノン株式会社 | X-ray tube |
| JP2013215273A (en) * | 2012-04-05 | 2013-10-24 | Canon Inc | Radiation imaging system, control apparatus, and control method |
| KR101676020B1 (en) | 2012-11-01 | 2016-11-14 | 삼성전자주식회사 | Medical image apparatus and method for providing operational information of gantry comprised the same |
| DE102014214584A1 (en) * | 2014-07-24 | 2016-01-28 | Siemens Aktiengesellschaft | A method of monitoring the operation of components of an imaging medical device |
| CN104780699A (en) * | 2015-04-24 | 2015-07-15 | 赛诺威盛科技（北京）有限公司 | Heat dissipation device for multiple rows of detectors of CT scanner |
| US10245004B2 (en) | 2016-01-06 | 2019-04-02 | General Electric Company | Systems and methods for imbalance measurement of rotating machinery |
| JP2018099175A (en) * | 2016-12-19 | 2018-06-28 | キヤノン株式会社 | Radiographic apparatus, radiographic system, radiographic method, and program |
| CN111528887A (en) * | 2020-04-30 | 2020-08-14 | 武汉中科医疗科技工业技术研究院有限公司 | Automatic balancing device, tomography imaging equipment and automatic balancing method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5109397A (en) * | 1988-04-22 | 1992-04-28 | Analogic Corporation | X-ray tomography apparatus with lateral movement compensation |
| US5412583A (en) * | 1993-06-10 | 1995-05-02 | Dynamics Research Corp. | Computer implemented balancer |
| BR9408119A (en) * | 1993-12-06 | 1997-08-05 | Analogic Corp | Apparatus for measuring one or more geometric and positional kinematic parameters of a rotation device Apparatus for measuring any lateral displacement of a geometric center of a rotation device Apparatus for substantially measuring the instantaneous angular position of a rotation device for a fixed reference point of the apparatus device for substantially measuring the instantaneous angular velocity of a rotating device as a rotating device rotates about an axis of rotation apparatus including a rotating object mounted on the support devices for rotating about an axis rotational system x-ray tomography method for determining parameters associated with the movement of a circular disk mounted on the support devices for rotation in a plane of rotation around a rotational axis |
| US5448608A (en) * | 1994-02-08 | 1995-09-05 | Analogic Corporation | Tomographic scanner having center of rotation for all physics |
| US5610968A (en) * | 1995-03-17 | 1997-03-11 | Picker International, Inc. | High capacity cooling system for CT gantry |
| US6350224B1 (en) * | 2000-07-17 | 2002-02-26 | Westinghouse Savannah River Company, Llc | Centrifugal unbalance detection system |
| US6412345B1 (en) * | 2000-09-29 | 2002-07-02 | Ge Medical Systems Global Technology Company, Llc | Balancing of rotational components of CT imaging equipment |
-
2001
- 2001-02-20 DE DE10108065A patent/DE10108065B4/en not_active Expired - Fee Related
-
2002
- 2002-02-14 US US10/075,652 patent/US6590960B2/en not_active Expired - Lifetime
- 2002-02-19 JP JP2002040975A patent/JP2002315745A/en active Pending
- 2002-02-20 CN CN02104690.5A patent/CN1258347C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002315745A (en) | 2002-10-29 |
| DE10108065B4 (en) | 2005-09-15 |
| DE10108065A1 (en) | 2002-09-19 |
| US20020114424A1 (en) | 2002-08-22 |
| CN1371662A (en) | 2002-10-02 |
| US6590960B2 (en) | 2003-07-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1258347C (en) | Computerised tomography | |
| CN102046090B (en) | Air bearing dynamic Z-axis balancing | |
| CN100351651C (en) | Gain factor and position determination system | |
| US7508904B2 (en) | X-ray CT apparatus | |
| CN100464706C (en) | Imaging fault contrast device | |
| US7542542B2 (en) | X-ray computed tomography apparatus | |
| CN1647765A (en) | Method for compensating unbalance | |
| US9480440B2 (en) | System and method for cone beam computed tomography | |
| CN1360482A (en) | Tomographic imaging scan condition determining method, tomographic imaging method and X-ray CT apparatus | |
| US6748806B2 (en) | Dynamic balancing system for computed tomography gantry | |
| EP2211720B1 (en) | High speed rotating gantry | |
| CN1575767A (en) | Ct gantry balance system and method | |
| JP4731770B2 (en) | Balancing rotating components of computerized tomography imaging equipment | |
| CN1883390A (en) | X-ray CT system | |
| CN1647764A (en) | Imaging fault contrast device | |
| JP2009031306A (en) | Nuclear medical diagnostic device | |
| JP4346286B2 (en) | Nuclear medicine diagnostic equipment | |
| CN1828250B (en) | Method for detection of a stable installation of a system | |
| CN1647763A (en) | Imaging fault contrast device | |
| CN212807615U (en) | Bearing measuring device and system of X-ray generator | |
| CN111714146B (en) | Correcting unbalance based on recorded radiation data | |
| CN110368016A (en) | A kind of medical treatment CT rotor inspection tooling | |
| CN102958438A (en) | X-ray ct apparatus and image processing apparatus | |
| CN218102873U (en) | Driving device of CT (computed tomography) equipment and CT imaging equipment | |
| CN111528887A (en) | Automatic balancing device, tomography imaging equipment and automatic balancing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220111 Address after: Erlangen Patentee after: Siemens Healthineers AG Address before: Munich, Germany Patentee before: SIEMENS AG |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20060607 |
|
| CX01 | Expiry of patent term |